JPH0216805U - - Google Patents
Info
- Publication number
- JPH0216805U JPH0216805U JP9511188U JP9511188U JPH0216805U JP H0216805 U JPH0216805 U JP H0216805U JP 9511188 U JP9511188 U JP 9511188U JP 9511188 U JP9511188 U JP 9511188U JP H0216805 U JPH0216805 U JP H0216805U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- rotary actuator
- drive shaft
- motion
- pinion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fluid-Driven Valves (AREA)
- Actuator (AREA)
Description
第１図は本考案の一実施例である複動式ロータ
リアクチユエータの縦断面図、第２図は本考案の
他の実施例である単動式ロータリアクチユエータ
の横断面図、第３図ａ及びｂは夫々第２図に示し
たロータリアクチユエータに用いたばね受けの平
面図及び縦断面図であり、第４図乃至第７図はロ
ータリアクチユエータの従来例を示す図であつて
、第４図は従来の複動式ロータリアクチユエータ
の横断面図、第５図は従来の単動式ロータリアク
チユエータの横断面図、第６図は第４図及び第５
図に示した両アクチユエータに共通に用いられて
いるピニオン軸の部分断面図、第７図は従来の単
動式ロータリアクチユエータの他例を示す横断面
図である。
１……複動式ロータリアクチユエータ、２，２
２……ピストン、３，２４……ラツク、４，２５
……駆動軸、５，２６……ピニオン、６，３４…
…短ピニオン、２１……単動式ロータリアクチユ
エータ、２７……コイルばね。
Fig. 1 is a vertical cross-sectional view of a double-acting rotary actuator which is an embodiment of the present invention, and Fig. 2 is a cross-sectional view of a single-acting rotary actuator which is another embodiment of the present invention. 3a and 3b are a plan view and a vertical sectional view, respectively, of a spring receiver used in the rotary actuator shown in FIG. 2, and FIGS. 4 to 7 are views showing conventional examples of the rotary actuator. 4 is a cross-sectional view of a conventional double-acting rotary actuator, FIG. 5 is a cross-sectional view of a conventional single-acting rotary actuator, and FIG. 6 is a cross-sectional view of a conventional double-acting rotary actuator.
FIG. 7 is a partial cross-sectional view of a pinion shaft commonly used in both actuators shown in the figure, and a cross-sectional view showing another example of a conventional single-acting rotary actuator. 1...Double acting rotary actuator, 2,2
2...Piston, 3,24...Rack, 4,25
... Drive shaft, 5, 26 ... Pinion, 6, 34 ...
...Short pinion, 21...Single-acting rotary actuator, 27...Coil spring.
Claims (1)
ストンの往復運動を、或いは空気圧などのガス圧
又は油圧で作動するピストンの往運動とばねの弾
発力で作動する該ピストンの復運動とを組合せて
なるピストンの往復運動を、該ピストンに形成し
たラツクと駆動軸に固定したピニオンとで構成し
たラツクアンドピニオン機構によつて該駆動軸の
正逆回転運動に変換し、主として該駆動軸を弁棒
に連結してボール弁、バタフライ弁などのバルブ
を開閉するのに用いるロータリアクチユエータで
あつて、該ピニオンを複数個の短ピニオンを積み
重ねて構成したことを特徴とするロータリアクチ
ユエータ。 (2) 空気圧などのガス圧又は油圧で作動するピ
ストンの往運動とばねの弾発力で作動する該ピス
トンの復運動とを組合せてなるピストンの往復運
動を、該ピストンに形成したラツクと駆動軸に固
定したピニオンとで構成したラツクアンドピニオ
ン機構などによつて該駆動軸の正逆回転運動に変
換し、主として該駆動軸を弁棒に連結してボール
弁、バタフライ弁などのバルブを開閉するのに用
いるロータリアクチユエータであつて、該ばねを
複数個のコイルばねで構成し、このコイルばねの
軸線が前記ピストンの軸線を中心線とする円筒面
上で該中心線に平行でかつ適宜の間隔を持つよう
に配置し、該コイルばねの装着個数を変更し得る
よう構成したことを特徴とするロータリアクチユ
エータ。 (3) 空気圧などのガス圧又は油圧で作動するピ
ストンの往運動とばねの弾発力で作動する該ピス
トンの復運動とを組合せてなるピストンの往復運
動を、該ピストンに形成したラツクと駆動軸に固
定したピニオンとで構成したラツクアンドピニオ
ン機構によつて該駆動軸の正逆回転運動に変換し
、主として該駆動軸を弁棒に連結してボール弁、
バタフライ弁などのバルブを開閉するのに用いる
ロータリアクチユエータであつて、該ピニオンを
複数個のピニオンを積み重ねて構成すると共に、
該ばねを複数個のコイルばねで構成し、このコイ
ルばねの軸線が前記ピストンの軸線を中心線とす
る円筒面上で該中心線に平行でかつ適宜の間隔を
持つように配置し、該コイルばねの装着個数を変
更し得るよう構成したことを特徴とするロータリ
アクチユエータ。[Claims for Utility Model Registration] (1) Operated by the reciprocating motion of a piston operated by gas pressure such as air pressure or hydraulic pressure, or by the reciprocating motion of a piston operated by gas pressure such as air pressure or hydraulic pressure and the elastic force of a spring. The reciprocating motion of the piston, which is combined with the backward motion of the piston, is converted into forward and reverse rotational motion of the drive shaft by a rack and pinion mechanism composed of a rack formed on the piston and a pinion fixed to the drive shaft. A rotary actuator that is converted into a rotary actuator and is used mainly to open and close valves such as ball valves and butterfly valves by connecting the drive shaft to a valve stem, and the pinion is constructed by stacking a plurality of short pinions. A rotary actuator featuring: (2) The reciprocating motion of the piston, which is a combination of the forward motion of the piston operated by gas pressure such as pneumatic pressure or hydraulic pressure, and the backward motion of the piston operated by the elastic force of a spring, is achieved by a rack formed on the piston and driven. A rack-and-pinion mechanism consisting of a pinion fixed to the shaft converts the drive shaft into forward and reverse rotation, and the drive shaft is mainly connected to a valve stem to open and close valves such as ball valves and butterfly valves. A rotary actuator used for A rotary actuator characterized in that the coil springs are arranged at appropriate intervals and configured so that the number of coil springs installed can be changed. (3) The reciprocating motion of the piston, which is a combination of the forward motion of the piston operated by gas pressure such as air pressure or hydraulic pressure, and the backward motion of the piston operated by the elastic force of a spring, is achieved by a rack formed on the piston and driven A rack-and-pinion mechanism consisting of a pinion fixed to the shaft converts the forward and reverse rotational motion of the drive shaft, and the drive shaft is mainly connected to the valve stem to form a ball valve.
A rotary actuator used to open and close a valve such as a butterfly valve, the pinion being configured by stacking a plurality of pinions,
The spring is composed of a plurality of coil springs, and the coil springs are arranged so that their axes are parallel to the center line and at appropriate intervals on a cylindrical surface whose center line is the axis of the piston. A rotary actuator characterized by being configured so that the number of springs installed can be changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9511188U JPH0216805U (en) | 1988-07-20 | 1988-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9511188U JPH0216805U (en) | 1988-07-20 | 1988-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0216805U true JPH0216805U (en) | 1990-02-02 |
Family
ID=31319732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9511188U Pending JPH0216805U (en) | 1988-07-20 | 1988-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0669499U (en) * | 1993-03-05 | 1994-09-30 | 北村バルブ製造株式会社 | Linear motion converter |
| WO2021075603A1 (en) * | 2019-10-17 | 2021-04-22 | (주)코사플러스 | Valve actuating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5923108A (en) * | 1982-07-03 | 1984-02-06 | ハ−・ペ−・ウント・ハ−・ペ−・ヒエミ−−シユテルグリ−デル・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Pneumatic type actuator |
-
1988
- 1988-07-20 JP JP9511188U patent/JPH0216805U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5923108A (en) * | 1982-07-03 | 1984-02-06 | ハ−・ペ−・ウント・ハ−・ペ−・ヒエミ−−シユテルグリ−デル・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Pneumatic type actuator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0669499U (en) * | 1993-03-05 | 1994-09-30 | 北村バルブ製造株式会社 | Linear motion converter |
| WO2021075603A1 (en) * | 2019-10-17 | 2021-04-22 | (주)코사플러스 | Valve actuating device |
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